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AD7887ARMZ-REEL7

更新时间： 2024-11-16 14:50:19
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管转换器
页数 文件大小 规格书
16页 133K
描述
2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP

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AD7887ARMZ-REEL7 数据手册

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+2.7 V to +5.25 V, Micropower, 2-Channel,  
a
125 kSPS, 12-Bit ADC in 8-Lead ␮SOIC  
AD7887  
FUNCTIO NAL BLO CK D IAGRAM  
FEATURES  
Specified for VDD of +2.7 V to +5.25 V  
Flexible Pow er/ Throughput Rate Managem ent  
Shutdow n Mode: 1 ␮A Max  
One/ Tw o Single-Ended Inputs  
AD7887  
AIN0  
I/P  
MUX  
T/H  
Serial Interface: SPI™/ QSPI™/ MICROWIRE™/ DSP  
Com patible  
8-Lead Narrow SOIC and ␮SOIC Packages  
V
/
REF  
AIN1  
2.5V  
REF  
COMP  
V
/AIN1  
REF  
APPLICATIONS  
SOFTWARE  
CONTROL  
LATCH  
V
BUF  
DD  
Battery-Pow ered System s (Personal Digital Assistants,  
Medical Instrum ents, Mobile Com m unications)  
Instrum entation and Control System s  
High Speed Modem s  
GND  
CHARGE  
REDISTRIBUTION  
DAC  
SAR + ADC  
CONTROL LOGIC  
GENERAL D ESCRIP TIO N  
The AD7887 is a high speed, low power, 12-bit ADC that oper-  
ates from a single +2.7 V to +5.25 V power supply. The AD7887  
is capable of 125 kSPS throughput rate. T he input track-and-  
hold acquires a signal in 500 ns and features a single-ended  
sampling scheme. The output coding for the AD7887 is straight  
binary and the part is capable of converting full power signals up to  
2.5 MHz.  
SPORT  
DIN  
SCLK  
CS  
DOUT  
CMOS construction ensures low power dissipation of typically  
2 mW for normal operation and 3 µW in power-down mode.  
T he part is available in an 8-lead, 0.15-inch-wide narrow body  
SOIC and an 8-lead µSOIC package.  
T he AD7887 can be configured for either dual or single chan-  
nel operation, via the on-chip Control Register. T here is a  
default single-channel mode that allows the AD7887 to be  
operated as a read-only ADC. In single-channel operation,  
there is one analog input (AIN0) with the VREF/AIN1 pin as-  
suming its VREF function. T his VREF pin allows the user access  
to the part’s internal +2.5 V reference, or the VREF pin can be  
overdriven by an external reference to provide the reference  
voltage for the part. T his external reference voltage has a range  
P RO D UCT H IGH LIGH TS  
1. Smallest 12-bit dual/single-channel ADC; 8-lead µSOIC  
package.  
2. Lowest power 12-bit dual/single-channel ADC.  
3. Flexible power management options including automatic  
power-down after conversion.  
of +2.5 V to VDD. The analog input range on AIN0 is 0 to +VREF  
.
In dual-channel operation, the VREF/AIN1 pin assumes its AIN1  
4. Read-Only ADC capability.  
function, providing a second analog input channel. In this case,  
the reference voltage for the part is provided via the VDD pin. As  
a result, the input voltage range on both the AIN0 and AIN1  
5. Analog input range from 0 V to VREF  
.
6. Versatile serial I/O port (SPI/QSPI/MICROWIRE/DSP  
compatible).  
inputs is 0 to VDD  
.
SPI and QSPI are trademarks of Motorola, Inc.  
MICROWIRE is a trademark of National Semiconductor Corporation.  
REV. B  
Inform ation furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assum ed by Analog Devices for its  
use, nor for any infringem ents of patents or other rights of third parties  
which m ay result from its use. No license is granted by im plication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.  
Tel: 781/ 329-4700  
Fax: 781/ 326-8703  
World Wide Web Site: http:/ / w w w .analog.com  
© Analog Devices, Inc., 1999  
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AD7887ARMZ-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
AD7887ARMZ ADI

完全替代

 2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP
AD7887ARM-REEL ADI

完全替代

 2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP
AD7887ARM ADI

类似代替

 +2.7 V to +5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead uSOIC

与AD7887ARMZ-REEL7相关器件

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AD7887AR-REEL ADI

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 		2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP
AD7887AR-REEL7 ADI

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 		2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP
AD7887AR-REEL7 ROCHESTER

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 		2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, 0.150 INCH, MS-012AA, SOIC
AD7887ARZ ADI

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 		2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP
AD7887ARZ2 ADI

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 		2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP
AD7887ARZ-REEL ADI

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 		2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, 0.150 INCH, ROHS COMPLIANT
AD7887ARZ-REEL2 ADI

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 		2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP
AD7887ARZ-REEL7 ADI

获取价格

 		2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP
AD7887ARZ-REEL7 ROCHESTER

获取价格

 		2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, 0.150 INCH, ROHS COMPLIANT

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